WO2002043182A1 - Pifa antenna device for mobile communication terminals - Google Patents
Pifa antenna device for mobile communication terminals Download PDFInfo
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- WO2002043182A1 WO2002043182A1 PCT/DE2001/004148 DE0104148W WO0243182A1 WO 2002043182 A1 WO2002043182 A1 WO 2002043182A1 DE 0104148 W DE0104148 W DE 0104148W WO 0243182 A1 WO0243182 A1 WO 0243182A1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
- H01Q9/0421—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with a shorting wall or a shorting pin at one end of the element
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
- H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
- H01Q5/357—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
- H01Q5/364—Creating multiple current paths
- H01Q5/371—Branching current paths
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/378—Combination of fed elements with parasitic elements
Definitions
- the invention relates to a PIFA antenna device (Planar Inverted F-Antenna), with an RF input / output and two antenna areas, each of which has contact with a ground of a mobile communication terminal, the first antenna area for two independent frequencies and the second antenna area is designed for a third independent frequency.
- PIFA antenna device Plant Inverted F-Antenna
- the antenna should meet both technical and optical requirements. On the one hand, it should work for more than one frequency, on the other hand, it should be as small as possible, for example to allow integration into a mobile radio device that is invisible from the outside.
- a PIFA antenna Planar Inverted F-Antenna
- PIFA antenna Planar Inverted F-Antenna
- GSM Global System for Mobile Communication
- PCN PCN
- PCN Personal Communication Network
- a known embodiment for introducing a third frequency provides for the bandwidth of the PCN frequency band of a dual-band antenna to be increased by increasing the distance between the antenna and the printed circuit board (PCB board) of the mobile radio device.
- PCB board printed circuit board
- the GSM / PCN dual-band antenna can also be used for the PCS frequency band.
- the PIFA antenna requires approximately 50% more volume for operation on three frequency bands than a PIFA antenna which only operates on two frequency bands.
- Another embodiment of designing a PIFA antenna that operates on three frequency ranges provides for combining a dual-band PIFA antenna with an additional antenna.
- This additional antenna provides the third resonance frequency and the entire PIFA antenna device now has three frequencies.
- both the dual-band PIFA antenna and the additional antenna are connected to an RF input / output of the mobile radio device, with both antennas being controlled separately. This configuration also leads to a larger volume of the PIFA antenna device.
- the inventor proposes a PIFA antenna device with an RF input / output and two antenna areas, each of which has contact with a ground of a mobile communication terminal, the first antenna area for two independent frequencies and the second antenna area for a third independent Frequency trained is to be further developed in such a way that only the first antenna surface is connected to the RF input / output and the second antenna surface is arranged without contact with the first antenna surface in such a way that an electromagnetic coupling is created between the two antenna surfaces.
- This electromagnetic coupling eliminates the need to separately control the second antenna area.
- the first antenna area can operate as a dual-band antenna in the frequency bands for GSM and PCN operation and the second antenna area can provide the frequency for PCS operation.
- the second antenna surface is designed such that it forms a ⁇ / 4 resonator when it is connected to ground.
- the ⁇ / 4 resonator is excited by an electromagnetic coupling between the two antenna surfaces.
- the length and the width of the second antenna area can advantageously be matched to a desired third frequency.
- a nominal value of, for example, 50 ohms input impedance of the antenna device at the third frequency can be realized by selecting the size of the free area or the non-conductive medium between the two antenna areas.
- the antenna can be operated without a matching network or with a small number of matching elements, so that the losses occurring in matching circuits can be avoided.
- the antenna surfaces have kinks and bends. This can result in small spatial structures that are suitable for use at two as well as three frequencies and that can adapt to a housing of an existing mobile radio device.
- a first surface is provided which is largely enclosed by the first antenna surface and the second antenna surface is arranged within this surface. This configuration has the effect that the second antenna area can be accommodated in a recess in the interior of the first antenna area without requiring additional space.
- the two antenna surfaces can preferably be arranged in one plane (coplanar).
- the area delimited by the first antenna area can have a rectangular shape.
- This area is preferably adapted to the length and width of the second antenna area such that a contactless arrangement of this second antenna area as well as an electromagnetic coupling between the two antenna areas is made possible.
- the medium between the two contactlessly arranged antenna surfaces is preferably air or another non-conductive medium.
- the PIFA antenna device in an advantageous embodiment of the PIFA antenna device according to the invention, at least one second area or recess is provided, which is delimited by the antenna area. In this way, the third frequency of the PIFA antenna device according to the invention can be tuned independently.
- Figure 1 PIFA antenna device according to the invention
- Figure 2 calculated reflection coefficient Sn of the PIFA antenna device according to the invention.
- FIG. 1 shows a preferred exemplary embodiment of the PIFA antenna device A according to the invention.
- Antenna device A contains two antenna areas Pl and P2, the antenna area Pl largely delimiting or comprising a rectangular area FI.
- the antenna area Pl is open on one side.
- the area FI can also be viewed as a recess in the antenna area Pl and can also have a different shape.
- the antenna area Pl contains a contact Gl, which contacts a mass of the mobile radio device, an RF input / output S1, which connects the antenna area Pl to an RF input / output of the mobile radio device, and a further area or a recess F2.
- the antenna area Pl represents a dual-band antenna, for example for the frequency bands 900 MHz and 1800 MHz.
- a further antenna area P2 is arranged in the cutout F1 without additional space being required. It should be noted here that the antenna surfaces P1 and P2 do not touch each other.
- the antenna area P2 has no direct connection to the RF input / output S1, so that it represents a "parasitic element".
- the antenna area P2 carries a contact G2, which connects the antenna area P2 to the mass of the mobile radio device. If the antenna surface P2 is connected to the ground, it forms a ⁇ / 4 resonator, which only requires half the surface of a ⁇ / 2 resonator (without a ground connection).
- the third frequency band can be selected by the selected length and width of the antenna area P2.
- the antenna area P2 is excited via an electromagnetic coupling between the antenna area P1 and the antenna area P2.
- an optimal reflection coefficient Su can be realized at a third frequency.
- FIG. 2 shows as a solid line the reflection coefficients Sn of the PIFA antenna device according to the invention, which were calculated in a known manner, plotted against the frequency F.
- the frequency bands for the GSM operation in the range between approximately 880 to 960 MHz, for the PCN operation in the range between approximately 1710 to 1880 MHz and for the PCS operation in the range between approximately 1850 to 1990 MHz are shown as dashed lines .
- the simulation results plotted in FIG. 2 show that the PIFA antenna device according to the invention meets the requirements for operation in these three frequency ranges.
- the invention presents a PIFA antenna device for three frequency ranges, the dimensions of which correspond to those of a dual-band PIFA antenna and which enables installation in existing mobile radio devices.
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Abstract
Description
Beschreibungdescription
PIFA-Antennenvorrichtung für mobile Ko munikationsendgerätePIFA antenna device for mobile communication terminals
Die Erfindung betrifft eine PIFA-Antennenvorrichtung (Planar Inverted F-Antenna) , mit einem HF-Ein/Ausgang und zwei Antennenflächen, die jeweils einen Kontakt zu einer Masse eines mobilen Kommunikationsendgerätes aufweisen, wobei die erste Antennenfläche für zwei unabhängige Frequenzen und die zweite Antennenfläche für eine dritte unabhängige Frequenz ausgebildet ist.The invention relates to a PIFA antenna device (Planar Inverted F-Antenna), with an RF input / output and two antenna areas, each of which has contact with a ground of a mobile communication terminal, the first antenna area for two independent frequencies and the second antenna area is designed for a third independent frequency.
Bei mobilen Kommunikationsendgeräten sollte die Antenne sowohl technischen als auch optischen Anforderungen genügen. Zum einen sollte sie für mehr als eine Frequenz arbeiten, zum anderen sollte sie so klein wie möglich sein, um beispielsweise eine nach außen hin unsichtbare Integration in ein Mobilfunkgerät zu erlauben. Hierfür kann zum Beispiel eine PIFA-Antenne {Planar Inverted F-Antenna) verwendet werden, die eine äußerst kompakte Form aufweist.With mobile communication terminals, the antenna should meet both technical and optical requirements. On the one hand, it should work for more than one frequency, on the other hand, it should be as small as possible, for example to allow integration into a mobile radio device that is invisible from the outside. For example, a PIFA antenna (Planar Inverted F-Antenna) can be used, which has an extremely compact shape.
Meist operieren diese PIFA-Antennen in zwei unabhängigen Frequenzbereichen, zum Beispiel bei einem Frequenzband von 900 MHz im GSM-Betrieb (GSM = Global System for Mobile Commu- nication) und bei dem Frequenzband von 1800 MHz im PCN-Most of these PIFA antennas operate in two independent frequency ranges, for example with a frequency band of 900 MHz in GSM mode (GSM = Global System for Mobile Communication) and with the frequency band of 1800 MHz in PCN
Betrieb (PCN = Personal Co munication Network) . Die Einführung einer weiteren, dritten Frequenz, zum Beispiel bei dem Frequenzband des PCS-Betriebes (PCS = Personal Communications Services) bei 1900 MHz, wird bislang hauptsächlich mit Hilfe der nachfolgend beschriebenen Ausgestaltungen durchgeführt.Operation (PCN = Personal Communication Network). The introduction of a further, third frequency, for example in the frequency band of PCS operation (PCS = Personal Communications Services) at 1900 MHz, has so far been carried out mainly with the help of the configurations described below.
Eine bekannte Ausgestaltung zur Einführung einer dritten Frequenz sieht vor, die Bandbreite des PCN-Frequenzbandes einer Dualband-Antenne zu vergrößern, indem der Abstand zwischen der Antenne und der Leiterplatte (PCB-board) des Mobilfunkgerätes vergrößert wird. Hierdurch kann die GSM/PCN-Dualband- Antenne zusätzlich für das PCS-Frequenzband verwendet werden. In dieser Ausgestaltung benötigt die PIFA-Antenne jedoch für einen Betrieb auf drei Frequenzbändern zirka 50% mehr Volumen als eine PIFA-Antenne, die lediglich auf zwei Frequenzbändern arbeitet.A known embodiment for introducing a third frequency provides for the bandwidth of the PCN frequency band of a dual-band antenna to be increased by increasing the distance between the antenna and the printed circuit board (PCB board) of the mobile radio device. This means that the GSM / PCN dual-band antenna can also be used for the PCS frequency band. In this embodiment, however, the PIFA antenna requires approximately 50% more volume for operation on three frequency bands than a PIFA antenna which only operates on two frequency bands.
Eine andere Ausgestaltung, eine PIFA-Antenne auszubilden, die auf drei Frequenzbereichen arbeitet, sieht vor, eine Dualband-PIFA-Antenne mit einer zusätzlichen Antenne zu kombinieren. Diese zusätzliche Antenne liefert die dritte Resonanz- frequenz und die gesamte PIFA-Antennenvorrichtung weist nun drei Frequenzen auf. Hier wird sowohl die Dualband-PIFA- Antenne als auch die zusätzliche Antenne mit einem HF- Ein/Ausgang des Mobilfunkgerätes verbunden, wobei beide Antennen separat angesteuert werden. Auch diese Ausgestaltung führt zu einer voluminöseren Baugröße der PIFA- Antennenvorrichtung.Another embodiment of designing a PIFA antenna that operates on three frequency ranges provides for combining a dual-band PIFA antenna with an additional antenna. This additional antenna provides the third resonance frequency and the entire PIFA antenna device now has three frequencies. Here, both the dual-band PIFA antenna and the additional antenna are connected to an RF input / output of the mobile radio device, with both antennas being controlled separately. This configuration also leads to a larger volume of the PIFA antenna device.
Da die heutigen Mobilf nkgeräte immer kleiner werden, sind diese bislang beschriebenen PIFA-A tennenvorrichtungen, die für drei Frequenzbereiche ausgelegt sind, nicht für einen Einbau in solche Mobilfunkgeräte geeignet.Since today's mobile telephones are getting smaller and smaller, these PIFA antenna devices described so far, which are designed for three frequency ranges, are not suitable for installation in such mobile telephones.
Es ist daher Aufgabe der Erfindung, eine PIFA- Antennenvorrichtung für drei Frequenzbereiche zu entwickeln, die kein nennenswert größeres Volumen als bestehende Dualband-PIFA-Antennen aufweist und somit einen Einbau in bestehende Mobilfunkgeräte ermöglicht.It is therefore an object of the invention to develop a PIFA antenna device for three frequency ranges, which does not have a significantly larger volume than existing dual-band PIFA antennas and thus enables installation in existing mobile radio devices.
Die Aufgabe zur Entwicklung einer PIFA-Antennenvorrichtung wird durch den unabhängigen Vorrichtungsanspruch gelöst.The task of developing a PIFA antenna device is solved by the independent device claim.
Demgemäss schlägt der Erfinder vor, eine PIFA-Antennenvorrichtung, mit einem HF-Ein/Ausgang und zwei Antennenflächen, die jeweils einen Kontakt zu einer Masse eines mobilen Kommunikationsendgerätes aufweisen, wobei die erste Antennenfläche für zwei unabhängige Frequenzen und die zweite Antennenfläche für eine dritte unabhängige Frequenz ausgebildet ist, dahingehend weiterzuentwickeln, dass ausschließlich die erste Antennenfläche mit dem HF-Ein/Ausgang verbunden ist und die zweite Antennenfläche berührungslos zu der ersten Antennenfläche derart angeordnet ist, dass zwischen beiden Anten- nenflachen eine elektromagnetische Kopplung entsteht. Durch diese elektromagnetische Kopplung kann auf eine separate An- steuerung der zweiten Antennenfläche verzichtet werden. Beispielsweise kann die erste Antennenfläche als Dualbandantenne in den Frequenzbändern für den GSM- und den PCN-Betrieb ar- beiten und die zweite Antennenfläche die Frequenz für den PCS-Betrieb liefern.Accordingly, the inventor proposes a PIFA antenna device with an RF input / output and two antenna areas, each of which has contact with a ground of a mobile communication terminal, the first antenna area for two independent frequencies and the second antenna area for a third independent Frequency trained is to be further developed in such a way that only the first antenna surface is connected to the RF input / output and the second antenna surface is arranged without contact with the first antenna surface in such a way that an electromagnetic coupling is created between the two antenna surfaces. This electromagnetic coupling eliminates the need to separately control the second antenna area. For example, the first antenna area can operate as a dual-band antenna in the frequency bands for GSM and PCN operation and the second antenna area can provide the frequency for PCS operation.
In einer vorteilhaften Ausgestaltung der erfindungsgemäßen PIFA-Antennenvorrichtung ist die zweite Antennenfläche derart ausgestaltet, dass sie einen λ/4-Resonator bildet, wenn sie auf Masse gelegt wird. Durch eine elektromagnetische Kopplung zwischen den beiden Antennenflächen wird der λ/4- Resonator angeregt .In an advantageous embodiment of the PIFA antenna device according to the invention, the second antenna surface is designed such that it forms a λ / 4 resonator when it is connected to ground. The λ / 4 resonator is excited by an electromagnetic coupling between the two antenna surfaces.
Vorteilhaft kann die Länge und die Breite der zweiten Antennenfläche auf eine gewünschte dritte Frequenz abgestimmt sein. Ein Nennwert von beispielsweise 50 Ohm Eingangsimpedanz der Antennenvorrichtung bei der dritten Frequenz kann durch die Auswahl der Größe der freien Fläche beziehungsweise des nichtleitenden Mediums zwischen den beiden Antennenflächen realisiert werden. Hierdurch kann die Antenne ohne ein Anpaßnetzwerk beziehungsweise mit einer geringen Anzahl von Anpaßelementen betrieben werden, so dass die in Anpassschaltungen auftretenden Verluste vermieden werden können.The length and the width of the second antenna area can advantageously be matched to a desired third frequency. A nominal value of, for example, 50 ohms input impedance of the antenna device at the third frequency can be realized by selecting the size of the free area or the non-conductive medium between the two antenna areas. As a result, the antenna can be operated without a matching network or with a small number of matching elements, so that the losses occurring in matching circuits can be avoided.
In einer vorteilhaften Weiterbildung der erfindungsgemäßen PIFA-Antennenvorrichtung weisen die Antennenflächen Knicke und Biegungen auf. Hierdurch können kleine räumliche Strukturen entstehen, die sowohl für eine Anwendung bei zwei als auch bei drei Frequenzen geeignet sind und die sich an ein Gehäuse eines bestehenden Mobilf nkgerätes anpassen können. Als besonders vorteilhafte Ausgestaltung ist eine erste Fläche vorgesehen, die von der ersten Antennenfläche weitgehend umschlossen wird und innerhalb dieser Fläche die zweite Antennenfläche angeordnet ist. Diese Ausgestaltung bewirkt, dass die zweite Antennenfläche, ohne zusätzlichen Platzbedarf, in einer Aussparung im Innenbereich der ersten Antennenfläche untergebracht werden kann. Die beiden Antennenflächen können hierbei vorzugsweise in einer Ebene (coplanar) angeordnet sein.In an advantageous development of the PIFA antenna device according to the invention, the antenna surfaces have kinks and bends. This can result in small spatial structures that are suitable for use at two as well as three frequencies and that can adapt to a housing of an existing mobile radio device. As a particularly advantageous embodiment, a first surface is provided which is largely enclosed by the first antenna surface and the second antenna surface is arranged within this surface. This configuration has the effect that the second antenna area can be accommodated in a recess in the interior of the first antenna area without requiring additional space. The two antenna surfaces can preferably be arranged in one plane (coplanar).
Darüber hinaus kann die von der ersten Antennenfläche umgrenzte Fläche rechteckför ig ausgestaltet sein. Diese Fläche ist vorzugsweise derart an die Länge und Breite der zweiten Antennenfläche angepasst, dass sowohl eine berührungslose Anordnung dieser zweiten Antennenfläche als auch eine elektromagnetische Kopplung zwischen beiden Antennenflächen ermöglicht wird. Das Medium zwischen den beiden berührungslos angeordneten Antennenflächen ist vorzugsweise Luft oder ein anderes nichtleitendes Medium.In addition, the area delimited by the first antenna area can have a rectangular shape. This area is preferably adapted to the length and width of the second antenna area such that a contactless arrangement of this second antenna area as well as an electromagnetic coupling between the two antenna areas is made possible. The medium between the two contactlessly arranged antenna surfaces is preferably air or another non-conductive medium.
Weiterhin ist in einer vorteilhaften Ausgestaltung der erfindungsgemäßen PIFA-Antennenvorrichtung mindestens eine zweite Fläche beziehungsweise Aussparung vorgesehen, die von der Antennenfläche umgrenzt wird. Hierdurch kann die dritte Fre- quenz der erfindungsgemäßen PIFA-Antennenvorrichtung unabhängig abstimmt werden.Furthermore, in an advantageous embodiment of the PIFA antenna device according to the invention, at least one second area or recess is provided, which is delimited by the antenna area. In this way, the third frequency of the PIFA antenna device according to the invention can be tuned independently.
Weitere Merkmale der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines bevorzugten Ausführungsbeispieles unter Bezugnahme auf die Zeichnungen. Es zeigen:Further features of the invention result from the following description of a preferred exemplary embodiment with reference to the drawings. Show it:
Figur 1: erfindungsgemäße PIFA-Antennenvorrichtung; Figur 2 : berechnete Reflexionskoeffizienten Sn der erfindungsgemäßen PIFA-Antennenvorrichtung.Figure 1: PIFA antenna device according to the invention; Figure 2: calculated reflection coefficient Sn of the PIFA antenna device according to the invention.
Die Figur 1 zeigt ein bevorzugtes Ausführungsbeispiel der erfindungsgemäßen PIFA-Antennenvorrichtung A. Die PIFA- Antennenvorrichtung A enthält zwei Antennenflächen Pl und P2, wobei die Antennenfläche Pl eine rechteckförmige Fläche FI weitgehend umgrenzt beziehungsweise umfasst. Die Antennenfläche Pl ist nach einer Seite hin geöffnet. Die Fläche FI kann auch als Aussparung in der Antennenfläche Pl betrachtet werden und kann auch eine andere Form aufweisen. Weiterhin enthält die Antennenfläche Pl einen Kontakt Gl, der eine Masse des Mobilfunkgerätes kontaktiert, einen HF-Ein/Ausgang Sl, der die Antennenfläche Pl mit einem HF-Ein/Ausgang des Mobil- funkgerätes verbindet sowie eine weitere Fläche beziehungsweise eine Aussparung F2.FIG. 1 shows a preferred exemplary embodiment of the PIFA antenna device A according to the invention. Antenna device A contains two antenna areas Pl and P2, the antenna area Pl largely delimiting or comprising a rectangular area FI. The antenna area Pl is open on one side. The area FI can also be viewed as a recess in the antenna area Pl and can also have a different shape. Furthermore, the antenna area Pl contains a contact Gl, which contacts a mass of the mobile radio device, an RF input / output S1, which connects the antenna area Pl to an RF input / output of the mobile radio device, and a further area or a recess F2.
Die Antennenfläche Pl stellt eine Dualbandantenne dar, zum Beispiel für die Frequenzbänder 900 MHz und 1800 MHz.The antenna area Pl represents a dual-band antenna, for example for the frequency bands 900 MHz and 1800 MHz.
In der Aussparung Fl ist eine weitere Antennenfläche P2 angeordnet, ohne dass zusätzlicher Platz benötigt wird. Hierbei ist zu beachten, dass sich die Antennenflächen Pl und P2 gegenseitig nicht berühren. Die Antennenfläche P2 hat keine direkte Verbindung zu dem HF-Ein/Ausgang Sl, so daß sie ein „parasitäres Element" darstellt.A further antenna area P2 is arranged in the cutout F1 without additional space being required. It should be noted here that the antenna surfaces P1 and P2 do not touch each other. The antenna area P2 has no direct connection to the RF input / output S1, so that it represents a "parasitic element".
Weiterhin trägt die Antennenfläche P2 einen Kontakt G2, der die Antennenfläche P2 mit der Masse des Mobilfunkgerätes ver- bindet. Wird die Antennenfläche P2 mit der Masse verbunden, bildet sie einen λ/4-Resonator, der nur die Hälfte von der Fläche eines λ/2-Resonators (ohne Massenverbindung) benötigt.Furthermore, the antenna area P2 carries a contact G2, which connects the antenna area P2 to the mass of the mobile radio device. If the antenna surface P2 is connected to the ground, it forms a λ / 4 resonator, which only requires half the surface of a λ / 2 resonator (without a ground connection).
Das dritte Frequenzband kann durch die gewählte Länge und Breite der Antennenfläche P2 gewählt werden. Eine Anregung der Antennenfläche P2 findet über eine elektromagnetische Kopplung zwischen der Antennenfläche Pl und der Antennenfläche P2 statt. Durch Auswahl der Fläche Fl kann ein optimaler Reflexionskoe fizient Su bei einer dritten Frequenz reali- siert werden. Die Figur 2 zeigt als durchgezogene Linie die Reflexionskoeffizienten Sn der erfindungsgemäßen PIFA-Antennenvorrichtung, die auf bekannte Weise berechnet wurden, in einer Auftragung gegen die Frequenz F.The third frequency band can be selected by the selected length and width of the antenna area P2. The antenna area P2 is excited via an electromagnetic coupling between the antenna area P1 and the antenna area P2. By selecting the area Fl, an optimal reflection coefficient Su can be realized at a third frequency. FIG. 2 shows as a solid line the reflection coefficients Sn of the PIFA antenna device according to the invention, which were calculated in a known manner, plotted against the frequency F.
Das Frequenzbänder für den GSM-Betrieb sind im Bereich zwischen zirka 880 bis 960 MHz, für den PCN-Betrieb im Bereich zwischen zirka 1710 bis 1880 MHz und für den PCS-Betrieb im Bereich zwischen zirka 1850 bis 1990 MHz als gestrichelte Li- nien eingezeichnet.The frequency bands for the GSM operation in the range between approximately 880 to 960 MHz, for the PCN operation in the range between approximately 1710 to 1880 MHz and for the PCS operation in the range between approximately 1850 to 1990 MHz are shown as dashed lines ,
Die aufgetragenen Simulationsergebnisse in der Figur 2 zeigen, dass die erfindungsgemäße PIFA-Antennenvorrichtung den Erfordernissen für einen Betrieb in diesen drei Frequenzbe- reichen genügt.The simulation results plotted in FIG. 2 show that the PIFA antenna device according to the invention meets the requirements for operation in these three frequency ranges.
Es versteht sich, dass die vorstehend genannten Merkmale der Erfindung nicht nur in der jeweils angegebenen Kombination, sondern auch in anderen Kombinationen oder in Alleinstellung verwendbar sind, ohne den Rahmen der Erfindung zu verlassen.It goes without saying that the features of the invention mentioned above can be used not only in the respectively specified combination, but also in other combinations or on their own, without leaving the scope of the invention.
Insgesamt wird durch die Erfindung eine PIFA-Antennenvorrichtung für drei Frequenzbereiche vorgestellt, die in ihren Ausdehnungen denen einer Dualband-PIFA-Antenne entspricht und die einen Einbau in bestehende Mobilfunkgeräte ermöglicht. Overall, the invention presents a PIFA antenna device for three frequency ranges, the dimensions of which correspond to those of a dual-band PIFA antenna and which enables installation in existing mobile radio devices.
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP01997175A EP1336222B1 (en) | 2000-11-24 | 2001-11-05 | Pifa antenna device for mobile communication terminals |
| US10/432,789 US7102575B2 (en) | 2000-11-24 | 2001-11-05 | PIFA antenna apparatus for mobile communications terminals |
| DE50103253T DE50103253D1 (en) | 2000-11-24 | 2001-11-05 | PIFA ANTENNA DEVICE FOR MOBILE COMMUNICATION TERMINALS |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10058387 | 2000-11-24 | ||
| DE10058387.3 | 2000-11-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2002043182A1 true WO2002043182A1 (en) | 2002-05-30 |
Family
ID=7664525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2001/004148 Ceased WO2002043182A1 (en) | 2000-11-24 | 2001-11-05 | Pifa antenna device for mobile communication terminals |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US7102575B2 (en) |
| EP (1) | EP1336222B1 (en) |
| DE (1) | DE50103253D1 (en) |
| WO (1) | WO2002043182A1 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1359641A1 (en) * | 2002-05-03 | 2003-11-05 | Siemens Aktiengesellschaft | Pifa antenna device for mobile communication terminals |
| EP1396905A1 (en) * | 2002-09-04 | 2004-03-10 | Siemens Aktiengesellschaft | Mobile radio telephone antenna for at least four frequency bands |
| EP1406345A1 (en) * | 2002-07-18 | 2004-04-07 | Siemens Aktiengesellschaft | PIFA-antenna with additional inductance |
| WO2004114464A1 (en) * | 2003-06-24 | 2004-12-29 | Benq Corporation | Pifa antenna system for several mobile telephone frequency bands |
| WO2005038981A1 (en) | 2003-10-20 | 2005-04-28 | Lk Products Oy | Internal multiband antenna |
| EP1568101A4 (en) * | 2002-11-08 | 2006-01-04 | Centurion Wireless Tech Inc | Optimum utilization of slot gap in pifa design |
| EP1678784A1 (en) * | 2003-10-31 | 2006-07-12 | LK Products Oy | Multiband planar antenna |
| FR2914113A1 (en) * | 2007-03-20 | 2008-09-26 | Trixell Sas | MIXED ANTENNA |
| WO2010090573A1 (en) * | 2009-02-04 | 2010-08-12 | Proant Ab | Antenna |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003085780A1 (en) * | 2002-04-04 | 2003-10-16 | Molex Incorporated | Tri-band antenna |
| FI20040584L (en) | 2004-04-26 | 2005-10-27 | Lk Products Oy | Antenna element and method for manufacturing the same |
| DE102004035064A1 (en) * | 2004-07-20 | 2006-02-16 | Receptec Gmbh | antenna module |
| GB2416625B (en) * | 2004-07-22 | 2008-04-23 | Univ Kent Canterbury | Antenna |
| US7414583B2 (en) * | 2004-12-08 | 2008-08-19 | Electronics And Telecommunications Research Institute | PIFA, RFID tag using the same and antenna impedance adjusting method thereof |
| WO2006081704A1 (en) * | 2005-02-05 | 2006-08-10 | Wei Yu | Broadband multi-signal loop antenna used in mobile terminal |
| US7164385B2 (en) | 2005-06-06 | 2007-01-16 | Receptec Holdings, Llc | Single-feed multi-frequency multi-polarization antenna |
| US7202831B2 (en) * | 2005-08-09 | 2007-04-10 | Darts Technologies Corp. | Multi-band frequency loop-slot antenna |
| US7277056B1 (en) * | 2006-09-15 | 2007-10-02 | Laird Technologies, Inc. | Stacked patch antennas |
| US8111196B2 (en) * | 2006-09-15 | 2012-02-07 | Laird Technologies, Inc. | Stacked patch antennas |
| KR100859711B1 (en) * | 2006-12-08 | 2008-09-23 | 한국전자통신연구원 | RDF Sensor Tag Antenna Using Aperture Coupled Feeding |
| KR102078101B1 (en) * | 2013-09-30 | 2020-02-17 | 삼성전자 주식회사 | Electronic device having antenna of pifa type and apparatus for transmitting/receiving wireless signal thereof |
| TWI629835B (en) | 2016-07-21 | 2018-07-11 | 和碩聯合科技股份有限公司 | Antenna unit, antenna system and antenna control method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5319378A (en) * | 1992-10-09 | 1994-06-07 | The United States Of America As Represented By The Secretary Of The Army | Multi-band microstrip antenna |
| EP0777295A2 (en) * | 1995-11-29 | 1997-06-04 | Ntt Mobile Communications Network Inc. | Antenna device having two resonance frequencies |
| WO1998044588A1 (en) * | 1997-03-31 | 1998-10-08 | Qualcomm Incorporated | Dual-frequency-band patch antenna with alternating active and passive elements |
| EP0871238A2 (en) * | 1997-03-25 | 1998-10-14 | Nokia Mobile Phones Ltd. | Broadband antenna realized with shorted microstrips |
| WO1999028990A1 (en) * | 1997-12-01 | 1999-06-10 | Kabushiki Kaisha Toshiba | Multifrequency inverted f-type antenna |
| EP0942488A2 (en) * | 1998-02-24 | 1999-09-15 | Murata Manufacturing Co., Ltd. | Antenna device and radio device comprising the same |
| US6114996A (en) * | 1997-03-31 | 2000-09-05 | Qualcomm Incorporated | Increased bandwidth patch antenna |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11150415A (en) | 1997-11-17 | 1999-06-02 | Toshiba Corp | Multi-frequency antenna |
| JP2000068736A (en) | 1998-08-21 | 2000-03-03 | Toshiba Corp | Multi-frequency antenna |
| FI105061B (en) | 1998-10-30 | 2000-05-31 | Lk Products Oy | Planar antenna with two resonant frequencies |
| JP3351363B2 (en) | 1998-11-17 | 2002-11-25 | 株式会社村田製作所 | Surface mount antenna and communication device using the same |
| EP1024552A3 (en) | 1999-01-26 | 2003-05-07 | Siemens Aktiengesellschaft | Antenna for radio communication terminals |
| US20010050643A1 (en) * | 2000-02-22 | 2001-12-13 | Igor Egorov | Small-size broad-band printed antenna with parasitic element |
| US6326921B1 (en) * | 2000-03-14 | 2001-12-04 | Telefonaktiebolaget Lm Ericsson (Publ) | Low profile built-in multi-band antenna |
-
2001
- 2001-11-05 EP EP01997175A patent/EP1336222B1/en not_active Expired - Lifetime
- 2001-11-05 WO PCT/DE2001/004148 patent/WO2002043182A1/en not_active Ceased
- 2001-11-05 US US10/432,789 patent/US7102575B2/en not_active Expired - Fee Related
- 2001-11-05 DE DE50103253T patent/DE50103253D1/en not_active Expired - Lifetime
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5319378A (en) * | 1992-10-09 | 1994-06-07 | The United States Of America As Represented By The Secretary Of The Army | Multi-band microstrip antenna |
| EP0777295A2 (en) * | 1995-11-29 | 1997-06-04 | Ntt Mobile Communications Network Inc. | Antenna device having two resonance frequencies |
| EP0871238A2 (en) * | 1997-03-25 | 1998-10-14 | Nokia Mobile Phones Ltd. | Broadband antenna realized with shorted microstrips |
| WO1998044588A1 (en) * | 1997-03-31 | 1998-10-08 | Qualcomm Incorporated | Dual-frequency-band patch antenna with alternating active and passive elements |
| US6114996A (en) * | 1997-03-31 | 2000-09-05 | Qualcomm Incorporated | Increased bandwidth patch antenna |
| WO1999028990A1 (en) * | 1997-12-01 | 1999-06-10 | Kabushiki Kaisha Toshiba | Multifrequency inverted f-type antenna |
| US6195048B1 (en) * | 1997-12-01 | 2001-02-27 | Kabushiki Kaisha Toshiba | Multifrequency inverted F-type antenna |
| EP0942488A2 (en) * | 1998-02-24 | 1999-09-15 | Murata Manufacturing Co., Ltd. | Antenna device and radio device comprising the same |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1359641A1 (en) * | 2002-05-03 | 2003-11-05 | Siemens Aktiengesellschaft | Pifa antenna device for mobile communication terminals |
| EP1406345A1 (en) * | 2002-07-18 | 2004-04-07 | Siemens Aktiengesellschaft | PIFA-antenna with additional inductance |
| EP1396905A1 (en) * | 2002-09-04 | 2004-03-10 | Siemens Aktiengesellschaft | Mobile radio telephone antenna for at least four frequency bands |
| EP1568101A4 (en) * | 2002-11-08 | 2006-01-04 | Centurion Wireless Tech Inc | Optimum utilization of slot gap in pifa design |
| US7183982B2 (en) | 2002-11-08 | 2007-02-27 | Centurion Wireless Technologies, Inc. | Optimum Utilization of slot gap in PIFA design |
| WO2004114464A1 (en) * | 2003-06-24 | 2004-12-29 | Benq Corporation | Pifa antenna system for several mobile telephone frequency bands |
| US7508345B2 (en) | 2003-06-24 | 2009-03-24 | Qisda Corporation | PIFA antenna arrangement for a plurality of mobile radio frequency bands |
| WO2005038981A1 (en) | 2003-10-20 | 2005-04-28 | Lk Products Oy | Internal multiband antenna |
| EP1678784A1 (en) * | 2003-10-31 | 2006-07-12 | LK Products Oy | Multiband planar antenna |
| FR2914113A1 (en) * | 2007-03-20 | 2008-09-26 | Trixell Sas | MIXED ANTENNA |
| WO2008125399A1 (en) * | 2007-03-20 | 2008-10-23 | Trixell S.A.S. | Mixed antenna |
| WO2010090573A1 (en) * | 2009-02-04 | 2010-08-12 | Proant Ab | Antenna |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1336222B1 (en) | 2004-08-11 |
| US20040075610A1 (en) | 2004-04-22 |
| DE50103253D1 (en) | 2004-09-16 |
| US7102575B2 (en) | 2006-09-05 |
| EP1336222A1 (en) | 2003-08-20 |
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